16363620 has 288 divisors, whose sum is σ = 65065728. Its totient is φ = 3359232.

The previous prime is 16363619. The next prime is 16363651. The reversal of 16363620 is 2636361.

16363620 is a `hidden beast` number, since 1 + 6 + 3 + 636 + 20 = 666.

16363620 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 442242 + ... + 442278.

Almost surely, 2^16363620 is an apocalyptic number.

16363620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16363620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32532864).

16363620 is an abundant number, since it is smaller than the sum of its proper divisors (48702108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16363620 is a wasteful number, since it uses less digits than its factorization.

16363620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 16363620 is about 4045.1971521794. The cubic root of 16363620 is about 253.8788146151.

Adding to 16363620 its reverse (2636361), we get a palindrome (18999981).

The spelling of 16363620 in words is "sixteen million, three hundred sixty-three thousand, six hundred twenty".